文献类型: 外文期刊
第一作者: Zhao, Junwei
作者: Zhao, Junwei;Liu, Chongxi;Han, Chuanyu;Bai, Lu;Sun, Pengyu;Li, Jiansong;Wang, Xiangjing;Xiang, Wensheng;Xiang, Wensheng
作者机构:
关键词: Kribbella qitaiheensis sp nov.;Polyphasic taxonomy;16S rRNA gene
期刊名称:ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY ( 影响因子:2.271; 五年影响因子:2.707 )
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收录情况: SCI
摘要: A novel nocardioform actinomycete, designated strain NEAU-GQTH2-3(T), was isolated from muddy soil collected from a stream in Qitaihe, Heilongjiang Province, northeast China and characterized using a polyphasic approach. Phylogenetic analysis based on the 16S rRNA gene sequence demonstrated that the organism should be assigned to the genus Kribbella and forms a clade with Kribbella catacumbae JCM 14968(T) (99.2 % sequence similarity), Kribbella koreensis JCM 10977(T) (99.1 %), Kribbella ginsengisoli JCM 16928(T) (98.6 %) and Kribbella sancticallisti JCM 14969(T) (98.4 %), although with low bootstrap support. Morphological and chemotaxonomic properties of the isolate are in agreement with the description of the genus Kribbella. Chemotaxonomic characteristics include LL-diaminopimelic acid in the cell-wall peptidoglycan; glucose and ribose as the characteristic whole-cell hydrolysates; diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, phosphatidylinositol, a glycerolipid and an unidentified phospholipid as the predominant polar lipids; the major menaquinones MK-9(H-4) and MK-9(H-2); as well as iso-C-15:0, iso-C-16:0 and C-17:1 omega 7c being the predominant fatty acid components. Mycolic acids were not detected. Furthermore, the strain could be clearly distinguished by the combination of DNA-DNA hybridization results and some phenotypic characteristics from the closest phylogenetic relatives. Therefore, it is proposed that strain NEAU-GQTH2-3(T) represents a novel species of the genus Kribbella, for which the name Kribbella qitaiheensis sp. nov. is proposed. The type strain is NEAU-GQTH2-3(T) (=CGMCC 4.7215(T) =JCM 30343(T)).
分类号: Q1
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